Control system for automatic washing machines



30, 1950 w. H. HENSHAW, JR 2,950,61?v

CONTROL SYSTEM FOR AUTOMATIC WASHING MACHINES 3 Sheets-Sheet 1 FiledDec.

I J IVVEIVTOR. WALLACE. H. HENSHAW IR.

9,4 f W Q'n H15 ATTORNEY Aug. 19 0 w. H. HENSHAW, JR 2,950,612

CONTROL SYSTEM FOR AUTOMATIC WASHING MACHINES 3 Sheets-Sheet 2 FiledDec.

FIGZ

INVENTOR.

WALLACE H- HENSHAW J'R.

BY "W HIS ATTORNEY Aug. 30, 1960 w. H. HENSHAW, JR 2,950,612

CONTROL SYSTEM FOR AUTOMATIC WASHING MACHINES Filed Dec. 12, 1956 3Sheets-Sheet 3 FIGG A 79 w f *80 U 20 FIG.7

RINSE PAUSE 5P1 COAST COAST AWTATE PAUSE OFF LI U U INVENTOR.

WALLACE H- HENSHAW r2.

HIS ATTORNEY Patented Aug. 3%, i959 dice CQNTRGL SYSTEM FQR AUEOMATICWASHING MACHINES Wallace H. Henshaw, In, Louisville, Ky, assignor toGeneral Electric Company, a corporation of New York Filed Dec. 12, 1956,S81. No. 627,821

10 Claims. c1. ss 12 My invention relates to automatic washing machinesand more particularly to the electrical control systems included in suchmachines for controlling their operation.

In order to provide the proper washing and extracting actions for thevarious types of fabrics handled in domestic washing machines, it isdesirable that the machines be capable of two diflerent speeds ofoperation. In particular in a vertical axis machine it is desirable thatthe agitator be movable at two different speeds and that the wash orspin basket be rotatable at two diiierent speeds. The high or normalspeed operation of the agitator provides a strong washing action whereasthe slower speed operation produces a more delicate washing action.Similarly the high speed rotation of the spin basket provides a strongcentrifugal or drying action whereas the slow speed rotation of thebasket provides a more delicate drying action. These two actions orspeeds of the agitator and the spin basket are desirable because thesame actions are not suitable for all types of fabrics.

My invention is particularly directed to washing machines including atwo speed drive for the agitator and the wash basket; and it has as itsgeneral object the provision of a new and improved control system whichwill permit the operator to select the agitator speed and the basketspeed independently of each other. In other words the general object ofmy invention is to provide a control system which will allow theoperator of the machine to use either of the agitator speeds with eitherof the basket speeds for washing and drying clothes, rather than merelyallowing her a choice of high or low with both operations being at thesame speed. This complete flexibility of operator selection is desirablebecause all of the articles which should be washed with the high speedaction of the agitator are not necessarily best dried with the highspeed rotation of the spin basket, and conversely, all of the articleswhich are best washed at the low speed action of the agitator should notnecessarily be dried at the low speed rotation of the spin basket. Thenormal family wash of cotton fabrics is, of course, best washed with thehigh speed agitator operation and dried with the high speed basketrotation, while a load of sheer articles such as slips and the like ispreferably both washed and dried with the low speed operation of theagitator and the bas.:et. But there are articles with which the lowspeed agitator operation should be combined with the high speed basketrotation, while there are others for which the high speed agitatoroperation should be combined with the low speed basket rotation. Forexample, although nylon shirts are best washed with a high speedagitator action to insure the removal of all soil marks, they should bedried at the low basket speed in order to avoid the setting of wrinkles.Conversely, blankets and pillows which should be washed at the low speedof the agitator in order to avoid damaging them must be spun at highspeed in order to extract the liquid from them satisfactorily. Thus, acontrol system which will allow the operator to select the agitatorspeed and the basket speed independently of each other is mostadvantageous to obtain the best possible washing and drying results.

Although a two-speed drive of the agitator and the spin basket may beprovided in various different ways, one particularly advantageous twospeed drive arrange ment is shown in the copending application of JohnBochan S.N. 627,817, new Patent No. 2,869,699, filed concurrentlyherewith and assigned to the same assignee as the present invention. Inthe Bochan drive arrangement the two speed operation of the agitator andthe basket are provided by means of a two speed clutch mechanism whichis connected between the drive motor and the transmission of themachine. The two speed clutch is effective to drive the transmission andthereby the agitator and the basket at either of two speeds, and it iscontrolled by means of a solenoid which conditions it for producing thedesired speed. Specifically when the solenoid is energized, itconditions the two speed clutch so that the agitator and the basket aredriven at one speed, whereas when the solenoid is de-energized, itconditions the clutch so that the agitator and basket are driven at theother speed.

It is another object of my invention to provide a new and improvedcontrol system which is adapted for use in a washing machine using thistwo-speed clutch arrangement for driving the agitator and the basket. Inparticular it is a specific object of my invention to provide a controlsystem whereby the energization of the control solenoid of the two speedclutch may be controlled independently for the washing and dryingoperations; and even a more specific object of my invention is toprovide a control system wherein one switch is utilized for controllingthe energization of the speed control solenoid during the operation ofthe agitator and a second switch is utilized for controlling theenergization of the solenoid during the operation of the wash basket.The one switch thus controls the agitating speed and the other switchcontrols the spin speed.

In one embodiment of the Bochan drive arrangement the drive motor of themachine is reversible and the operation produced in the machine, i.e.,agitation or spin, is controlled by the direction of the rotation of thedrive motor. When the drive motor runs in one direction, the agitator isdriven for washing clothes, and when the drive motor runs in theoppoiste direction, the basket is rotated for extracting water from theclothes. It is another object of my invention to provide an improvedcontrol system suitable for use with this reversing motor drivearrangement which system includes a timer operated, motor reversingswitch means for reversing the direction of the drive motor and whichfurther utilizes the motor reversing switch means as part of the controlmeans for the solenoid of the two peed clutch. By the use of the motorreversing switch means in the control circuit for the clutch solenoid,the need is obviated for additional timer operated switches todifferentiate between agitate and spin in the solenoid circuit. At leastone other time operated switch would otherwise be required.

Besides a two speed drive arrangement another desirable feature whichmay be provided in automatic washing machines is a wash water storageand re-use system. These systems, commonly known as suds saver systems,provide for saving the hot sudsy wash water in a storage reservoir afterthe washing operation is completed and for later returning the water tothe machine for use in a subsequent washing operation. In order to savethe wash water but yet pass the rinse water to the drain, the suds saversystems must include some sort of distribution valve means for directingthe wash water to the storage reservoir while directing the rinse waterto the drain. The distribution valve is preferably electricallycontrolled as by a solenoid, and the control system of the machine mustbe arranged for energizing the solenoid differently during thewash drainperiod than during the rinse drain period, thereby to operate the valveto the different positions during the two drains. Besidesdifierentiating between the wash drain and the rinse drain, it is alsodesirable that the control circuit for the distribution valve solenoiddifferentiate between the operation of the agitator and the extractionoperations, that is, the drain operations. Otherwise the valve solenoidwould be needlessly energized during the operation of the agitator.

Accordingly, a further object of my invention is to provide a washingmachine control system including new and improved means for controllingthe distribution valve solenoid of a suds saver system, whereby thedistribution valve solenoid may be energized only during the firstcentrifugal extraction operation, i.e.'wash drain, and at no other time.More specifically, it is a further object of my invention to provide acontrol system in which the circuit for the distribution valve solenoidis controlled by means of two timer operated switches which arenecessarily included in the system anyway to perform other functions.The dual use of these two switches, the motor reversing switch and theswitch for the inlet water valves, eliminates the need, which wouldotherwise exist, for a separate timer operated switch to difierentiatebetween wash drain and the other operations of the machine.

Summarizing briefly, by my invention I have provided a new and improvedcontrol system for a washing machine including a two speed drivearrangement. This control system is so arranged that the speed of theagitating means and the speed of the spin basket may be selectedindependently of each other, manually operable control means beingprovided for that purpose. Thereby either of the speeds of the agitatingmeans may be used with either of the basket speeds for obtaining thewashmg and drying actions particularly suited for the articles beingtreated. By a further aspect of my invention I provide a control systemwhich is particularly suited for a machine having a two speed drivearrangement wherein the speed change is provided by means of a solenoidcontrolled, two speed clutch. My control system provides for independentcontrol of this clutch during the operation of the agitating means andthe operation of the spin basket. In other words suitable switchingmeans are provided for independently controlling the energization of theclutch solenoid during the washing period and the extracting period.

Where a reversible drive motor is used in the drive means for producingagitation movement in one direction of motor rotation and spin basketoperation in the other direction of motor rotation, my invention alsocontemplates the use of the motor reversing switch means of the controlsystem as part of the control means for. the solenoid of the two speedclutch. The motor reversing switch means are utilized to energize aconnec- 'tion for the clutch solenoid at different electrical,potentials during agitation and spin; and this connection is used withtwo other connections, whose electrical potentials are different fromeach other but which do not change between agitation and spin, toprovide for independent selection of whether or not the solenoid will beenergized during agitation and spin. Manually operatedswitch meansassociated with the connections are used by the operator to make theselection. When a washing machine of this reversible motor type isadditionally provided with a suds saver system my invention alsoprovides for the use of the motor reversing switch means as part of thecontrol means for the distribution valve of the suds saver system. Themotor reversing switch means are combined with a timer operated switchused primarily to control the water inlet valves of the machine so thattogether these switches allow, the distribution valve to be energizedduring wash drain and at'no other time. Thereby the need is avoided foranadditional timer operated switch in the system. to

differentiate between wash drain and the other operations of themachine.

The subject matter which I regard as my invention is particularlypointed out and distinctly claimed in the concluding portion of thespecification. My invention, however, both as to its organization andmethod of operation, together with further objects and advantagesthereof, may best be understood by reference to the followingdescription taken in conjunction with the accompanying drawings inwhich:

Fig. l is a side elevational view of a clothes washing machine includinga two speed drive arrangement and a suds saver system, the View beingpartially broken away and partially in section to show details;

Fig. 2 is a schematic showing of the suds saver system of the machine ofFig. 1;

Fig. 3 is a plan view of the valve means included in the suds saversystem, the valve means including both a two way distribution valve anda shut off valve within the same casing;

Fig. 4 is a schematic sectional view of the two way distribution valve;

Fig. 5 is a schematic sectional view of the shut-0E valve;

Fig. '6 is a schematic circuit diagram of an electrical control systemfor the machine ofFig. 1, this control system embodying my invention inone form thereof;

and

Fig. 7 is a cam chart showing in extended 'form the surfaces of thevarious timer driven cams included in the system of Fig. 6, thereby toillustrate the sequence of operations of the switches controlled by thecams.

Referring now to Fig. l I have shown therein an agitator type clotheswashing machine 1. The machine 1 includes a clothes basket 2 which isdisposed 'Within an outer imperforate tub or casing 3. The tub 3 is inturn mounted within an appearance cabinet 4 which includes a hingedcover (not shown) for providing access to the clothes basket. At thecenter of the basket 2 there .is positioned a vertical axis agitator 5which includes a center post 6 and a plurality of radially extendingvanes 7. The agitator is further provide with a downwardly and outwardlyflared skirt 8 to which the vanes 7 are joined at their lower ends.

Both the clothes basket 2 and the agitator 5 are rotatably mounted. Thebasket is mounted on a flange 9 of a rotatable hub 10 and the agitator 5is mounted'on a shaft (not shown) which extends upwardly to the hub 10and the center post 6. The agitator is secured to the shaft by means ofan internally threaded nut or cap 11 at the top of the center post.During the cycle of operation of the machine :1, the agitator is firstoscillated back and forth within the basket 2 to wash the clothestherein. Then after a pre-determined period of this washing ac tion, thebasket 2 is rotated at high speed to extract centrifugally the washingliquid and discharge it into the outer tub 3. Following this extractionoperation a supply of clean liquid is introduced into the wash basketfor rinsing the clothes and the agitator is again oscillated. Finally,the basket is once more rotated at high speed to extract the rinse waterand discharge it into the outer tub.

In order to provide two different washing actions and two difierentextraction or drying actions, a two speed drive arrangement is providedwithin the machine 1 whereby both the agitator 5 and the clothes basket2 may be driven at two difierent speeds. Specifically, the agitator 5may be driven at a higher speed to produce a strong washing action andat a lower speed to produce a more delicate washing action. Similarly,the wash basket 2 may be rotated at a high speed to produce a strongextraction operation and at a somewhat slower speed to produce a moredelicate extraction operation. .By means of my new and improved controlsystem, which is described in detail hereinafter the operator may selectindependently whichever of the washing actions and whichever of thedrying actions are suitable for the type of clothes she is washing. Shemay combine either of the washing actions with either of the extractionor drying actions to provide the correct treatment of the clothes.

In the illustrated two speed drive arrangement the basket 2 and theagitator 5 are driven from a reversible motor 12. The motor 12 isprovided with only a single set of main or run windings and alwaysrotates at the same speed when energized, but the polarity of itsstarting winding may be reversed so as to cause the direction ofrotation of the motor to reverse. In order to obtain two differentspeeds of operation for the agitator 5 and the basket 2, there isconnected to the drive motor a two speed clutch mechanism 13. Themechanism 13 includes an output pulley 14, and depending upon theselection of the operator, the clutch 13 is eifective to drive thepulley 14 at either the speed of the motor 12 or at a pre-determinedlower speed. In other words the clutch is effective to provide a directdrive between the motor 12 and the output pulley 14, or alternately iseffective to produce a reduced speed drive of the pulley 14. A two speedclutch of this type particularly suited for use in the illustratedmachine is described in detail and claimed in the above mentionedcopending application of John Bochan S.N. 627,817. The two speed clutch'13 is controlled by means of a solenoid 15 (see Fig. 6). This solenoid15 operates a latch mechanism (not shown) which is effective in oneposition to condition the clutch 13 for the high speed drive of thepulley 14, and which in a second position is eflective to condition theclutch for the low speed drive of the pulley 14. Specifically in theillustrated machine when the solenoid 15 is deenergized, the two speedclutch 13 provides a direct drive between the motor 12 and the pulley14. Conversely when the solenoid 15 is energized, the clutch 13 providesa reduced speed drive of the pulley 14. The output pulley 14 of the twospeed clutch 13 is connected by means of a belt 16 to the input pulley17 of a transmission assembly 18. The transmission assembly 18 is soarranged that it supports and drives both the agitator drive shaft andthe basket mounting hub 10. When the pulley 17 is driven in onedirection by the output pulley 14 of the two speed clutch 13, thetransmission causes the agitator 5 to oscillate within the basket 2.Conversely when the pulley 17 is driven in the opposite direction, thetransmission 18 drives the wash basket 2 and the agitator 5 together athigh speed for centrifugal extraction. Thus, the operation carried out,i.e., agitation or centrifugal extraction, is controlled by thedirection of rotation of the drive motor, agitation occurring when themotor turns in one direction and centrifugal extraction occurring whenit turns in the other direction. Whether the agitation and centrifugalextraction will be low speed or high speed depends upon the action ofthe clutch 13. If the solenoid 15 is de-energized so that the clutch 13provides a direct continuous. drive between the motor 12 and the pulley14, high speed agitation and centrifugal extraction are efiected, but ifthe solenoid 15 is energized so that the clutch 13 provides a reducedspeed drive of the pulley 14, a lower speed agitation and centrifugalextraction are efiected. The two speed clutch 13, incidentally, isunaffected by the direction of rotation of the drive motor, and producesthe same action no matter in which direction the drive motor rotates.With regard to the transmission assembly 18 it will be understood thatany suitable transmission assembly may be used. However, reference ismade to the copencling application of James R. Hubbard et a1., S.N.420,594, filed April 2, 1954, now Patent No. 2,844,225, and assigned tothe same assignee as the present invention. That application describesin detail the structural characteristics of a transmission assemblysuitable for use in the illustrated machine.

Referring now to Fig. 6 I have shown therein a preferred embodiment ofmy new control system for controlling the machine 1, this system as willnow be explained providing for the independent selection by the operatorof the agitation and spin speeds. In order to control the sequence ofoperation of the machine 1, the system includes a timer motor 19 whichdrives a plurality of cams 20, 21, 22, and 23. These cams during theirrotation by the timer actuate various switches so as to cause themachine to progress through a preferred cycle of operations, firstwashing the clothes, next extracting the wash water from them, thenrinsing the clothes in clean water and finally extracting the rinsewater from the clothes. The electrical circuit as a whole is energizedfrom a two wire power supply 24, 25 and the manner in which the variouselectrical components of the machine including the clutch solenoid 15are connected to this power supply during the machine operation will beexplained hereinafter.

The control system Fig. 6 is shown in its condition just after the timerhas been rotated manually into the wash range for placing the machineoriginally in operation. A manual control dial 26 (see Fig. l) isprovided on the timer shaft to permit this or any other desired settingof the timer at the discretion of the operator. With the timer set inthe wash range or step the operator then need only close a manuallyoperable switch 27 to place the machine in operation. One preferredmanner of manually controlling the switch 27 is to arrange the timercontrol shaft so that it is axially movable, and mount the switch 27 foractuation by the axial movement of the shaft. Assuming the switch 27 tobe closed, the first step of the machine operation which then takesplace is the filling of the machine with wash water. However, since myinvention in one of its most important aspects relates to the control ofthe clutch solenoid 15 for controlling the operation of the two speeddrive, I will now describe the electrical control means for the solenoid15 and will delay temporarily the explanation of wash filling step.

During the operation of the machine the speed control solenoid 15 may beeither energized or de-energized at the discretion of the operator. Ifthe solenoid is deenergized the machine, whether in agitation or incentrifugal extraction, operates at high speed, whereas if solenoid isenergized, the machine operates at low speed. In my control systemmanually operable control means are provided whereby the condition ofthe solenoid, energized or de-energized, during agitation and thecondition of the solenoid, energized or de-energized, during spin may beindependently selected by the operator. In other words by means of thesemanually operable controls the operator may select high or low speedagitation independent of the spin speed, and high or low spin speedindependent of the agitating speed.

The operator controls for controlling the spin and agitate speedcomprise a pair of switches 28 and 2?. The switch 28 comprises the meansfor selecting the agitating speed and the switch 29 comprises the meansfor selecting the spin speed. Each of the switches includes a movablecontact and two fixed contacts, the switch as including the movablecontact 30 and the fixed contacts 31 and 32, and the switch 29 includingthe movable contact 33 and the fixed contacts 34 and 35. The two movablecontacts 30 and 33 are connected respectively to the opposite sides orterminals 36 and 37 of the solenoid 15 by means of suitable connectingconductors.

In order to energize the solenoid 15 through the switches 28 and 29, thefixed contacts of these switches are energized from a pair of supplyconductors 33 and 39 as explained below. The conductors 38 and 32 arethemselves energized during both agitation and spin with the full linevoltage supplied by the power supply conductors 24 and 25, and when thesolenoid 15 is supplied with the line voltage by them, it changes theclutch 13 from its high speed operation to its low speed operation. Themanner in which the conductors 38 and 39 are ener- 7 V gized from thesupply conductors 24 and 25 will be explained hereinafter when thesequence of operations of the machine 1 is described.

7 To provide for the selective energization of the speed controlsolenoid during agitation and spin, the fixed contact 34 of the switch29 is connected to the conductor 38 by a connection 40 and the fixedcontact 32 of the switch 28 is connected to the conductor 39 by aconnection 41. The other two fixed terminals 31 and 35 of the switchesare, however, not connected directly to the power supply conductors 38and 39 but are rather both connected to another conductor 42. Thisconductor 42 is controlled by means of a switch means 43 driven, by thetimer cam 23 so that it is energized from the conductor 38 during theoperation of the agitator and is energized from the conductor 39 duringthe operation of the spin basket. In other words during agitation theconductor 42 and thus the terminals 31 and 35 are energized at the samepotential as the conductor 38, whereas during centrifugal extraction orspin the conductor 42 and the terminals 31 and 34 are energized at thepotential of the conductor 39. Besides providing this oppositeenergization of the conductor or connection 42 during agitation andspin, the switch means 43 also provides for reversing the polarity ofthe start winding 44 of the drive motor 12, thereby to cause the drivemotor to rotate in opposite directions for causing the agitation andspin. The manner in which this motor reversing action is efiected by theswitch means 43 will be explained below.

The motor reversing switch means 43 comprises a double pole, doublethrow switch having a pair of movable contacts or switch arms 45 and 46and three fixed contacts 47, 48 and 49. Two of the fixed contacts 47 and49 are both connected directly to the power supply conductor 38, but thethird fixed contact 48 is connected to the other power supply conductor39, specifically being connected thereto through a conductor 50 and avery low resistance motor protector element 51. In the position of themotor reversing switch which is effective to cause the motor to rotatein the agitate direction, the movable arms 45 and 46 of the switchengage contacts 47 and 48 respectively. However, in the spin position ofthe switch wherein the motor is rotated in the opposite direction forcentrifugal extraction, the contacts 45 and 46 change position so thatthey engage respectively the contacts 48 and 49. The connection 42leading to the switches 28 and 29 is connected to the movable contact 45by a conductor 52 so that depending upon the condition of that contact,the connection 42 will be energized either from the conductor 38 or theconductor 39. With the movable contacts in the illustrated position theswitch arm 45 engages the contact 47 and thus the conductor 42 and thecontacts 31 and 35 of the speed control switches 28 and 29 are energizedat the potential of the conductor 38. Conversely, when the motorreversing switch moves to the extraction position so that the arm 45engages the contact 48, in that case the connection 42 and the contacts31 and 35 of the speed control switches are energized at the potentialof the line 39.

As mentioned above and as will be more fully explained hereinafter, themotor reversing switch means 43- are effective to reverse the polarityof the start winding 44 of the motor 12 in addition to acting as acontrol means for the speed solenoid 15, and for that purpose the startwinding 44 and a normally closed, motor operated, centrifugal switch 53are serially connected between the movable contacts 45 and 46 of thereversing switch. The

switch 53 is opened as soon as the motor 12 comes up to speed therebyproviding an open circuit between the contacts 45 and 46. But even whenthe switch 53 is still closed, the voltage drop across the start windingprevents any short circuiting between the contacts 45 and 46 so thatwhenever full line potential is applied to the opposite supplyconductors 38 and 39, that same potential exists between the contacts 45and 46.

With the. contact '34 always energized at the potential ofthe conductor38, with thecontact 32 always energized at the potential of theconductor 39, and with the contacts 31 and 35 being energized at thepotential of the conductor 38 during agitation and at the potential ofthe conductor 39 during spin through the action of the motor reversingswitch 43, the switches 28 and 29 are effective respectively to. provideindependent selection of the agitate speed and the spin speed asfollows. Considering first the agitate speed switch 28, let it beassumed that the movable contact 30 of the switch is in the illustratedposition wherein it engages contact 31. With the contact arm 39 in' thisposition, the solenoid cannot be energized no matter which position isvoccupied by the contact arm 33 of the spin speed switch 29. If thecontact arm 33 of the switch 29 engages the contact 35, both terminalsof the solenoid are obviously at the same potential so that it will notbe operated, and if the arm 33 engages the contact 34 both sides of thesolenoid are still at the same potential. The motor reversing switch 43during agitation is in illustrated position wherein the contact arm 45engages the contact 47, and with the motor reversing switch in thisposition the contact 31 of the agitate control switch 28 is at thepotential of the conductor38. Specifically it is con: nected to theconductor 38 through the conductors 42 and 52, and the contacts 45, 47of the motor reversing switch. The contact 34 of spin speed switch 2, isof course at the same potential being connected directly to the line 38and thus both the terminals of the solenoid are still at the samepotential even when the switch arm 33 of the spin speed engages thecontact 34. Thus, no matter which position the spin speed switch is in,the solenoid cannot be energized during agitation if the agitate speedswitch 28 is operated so that its movable contact engages the contact31. The clutch 13 will,

therefore, be controlled by the solenoid so that it produces the highspeed drive of the agitator.

Now, however, assume that the agitate speed switch 28 is operated sothat its movable contact arm 30 en- .gages the contact 32. In that casethe solenoid 15 will be energized no matter which position the spinspeed switch 29 is in. With the contacts 30, 32 of the agitate switch 28in engagement, the one terminal 36 of the solenoid 15 is connecteddirectly to the line 39; and with the motor reversing switch in theagitate position the other terminal 37 of the solenoid is connected tothe other supply line 38 through the spin speed switch 29, no matterwhich position the switch 29 occupies. Therefor, the voltage between theconductors 38, 39 is supplied to the solenoid 15 and it is operated. Ifthe spin speed switch 29 is operated so that its contact 33 engages thecontact 34 in that case a direct connection is provided between thesolenoid terminal 37 and the line 38 through the switch and theconductor 49. If on the other hand the movable contact 33 should be inengagement with the contact 35, in that case the circuit is still madedirectly to the conductor 38 through the conductors 42 and 52 and thecontacts 45, 47 of the motor reversing switch '43. Thus, it will be seenthat if the agitate speed switch 28 is operated so that its movablecontact 30 engages the fixed contact 32, the solenoid 15 will beenergized no matter which position the spin speed switch is operated to.The clutch 13 will thereby be controlled so that a low speed operationof the agitator results.

In summary, it will be seen from the above that the agitate switch 28provides a selection of the agitate speed completely independent of thespin speed switch 29. No matter which position the spin speed switch isadjusted to, the speed of operation of the agitatorwill not be affected.Rather the control of the agitate speed is solely by the switch 28. Ifthe switch is in one position, a slow speed agitation will result,whereas if it is in the other position, a fast or normal speed agitationwill result.

The spin speed switch 29 on the other hand provides for an independentselection of the spin speed no matter in which position the agitateswitch 28 is set. Assuming first that the spin speed switch 33 is set inits illustrated position wherein the movable contact arm 33 engages thefixed contact 35. 'In that case the solenoid 15 cannot be energized nomatter in which position the agitate speed switch 28 is set and therebya normal speed spin will result. If the agitate switch 28 is set so thatits movable contact 30 engages the contact 31, then the terminals 36 and37 of the solenoid are connected directly together through the contacts31 and 35. The terminals of the solenoid are thus obviously at the samepotential so that the solenoid is not energized. Moreover, if thecontact arm 30 of the agitate speed switch 28 is moved into engagementwith the contact 32, the same result is still eliected. This is becausethat during the operation of the spin basket, the motor reversing switch43 moves to its second position wherein the contacts 45 and 46 engagerespectively the fixed contacts and 49. With the reversing switch inthis position, the connection 42 and thereby the contact 35 of the spinspeed switch are energized from the line 39, being connected theretothrough the contacts 46 .and 49, the conductor and the motor protectivedevice 51. The contact 31 of the agitate speed switch 28 is, of course,also energized from the conductor 38 by the same path while the otherfixed contact 32 of switch 28 is tied directly to the conductor 39 bythe connection 41. Both the fixed contacts of the agitate speed switch28 are thus at the same potential as the contact 35 of the spin speedswitch 29. Therefore, no matter which position the switch 28 is movedto, both terminals of the solenoid 15 will be at the same potential asthe movable contact 33 of the switch 29 engages the fixed contact 35.The solenoid is consequently not energized and the clutch mechanism isadjusted so that the agitator 5 is driven at normal speed.

On the other hand if the spin speed switch is operated so that themovable contact 33 engages the contact 34, in that case the solenoid 15is energized and operated no matter which position is occupied by theagitate switch 27. Assuming now that the spin speed switch is sooperated so that the contact 33 engages the contact 34, the terminal 37of the solenoid is thereby connected directly to the conductor 38. Ifthe agitate switch is operated so its movable contact 30 engages thefixed contact 32, a circuit is thereby completed through the conductor41 connecting the opposite terminal 36 of the solenoid to the line 39,and thus the solenoid is energized. However, even if the agitate switchis in engagement with the contact 31, the same result is provided. Thatis, the terminal 36 is still connected to the conductor 39 and thesolenoid is energized. In this case the circuit extends from the contact31 through the conductors 42 and .52, the contacts 45 and 48 of themotor reversing switch, the conductor 50, and the motor protectivedevice .51 to the conductor 39. Thus, it will be seen that no matterwhich position is occupied by the agitate switch 28, the solenoid 15will be energized during spin if the spin speed switch 29 is operated sothat the contact 33 engages the contact 34. Thereby a slow speed spinwill be provided.

In summary, it will be seen from the above that the switch 29 providesan independent selection of the spin speed which is unaffected by thepositioning of the agitate speed switch 28. If the spin switch is in itsillustrated position wherein the movable contact 33 engages the contact35, the speed control solenoid 15 will not be energ zed and a high speedspin will result no matter how the agitate switch 28 is adjusted.Conversely, if the switch 29 is operated so that the contact 33 engagesthe contact 34, the solenoid 15 will be energized and a low speed spinproduced unaffected by the positioning of the agitate switch 28. Withregard to both the speed control switches 28 and '29 it will beunderstood that they may be preset by the operator when she first placesthe machine in operation and that the desired speeds will thereafter beautomatically produced by the control system. In other words theoperator need not remain at the machine and adjust the switches at thetime the machine proceeds from one operation to another. Rather afterhaving once set the switches, she may then leave the machine with nofurther attendance on her part being required.

Returning now to the normal sequence of operation of the machine andassuming that timer has been moved into the wash range and that theswitch 28 has been closed, the first step which takes place is thefilling of the machine with water. Specifically a solenoid 54 isenergized for opening a valve 55 to introduce hot water into the washbasket 2. To explain the circuit {or energizing the solenoid 54,commencing with the supply line 24 the circuit extends through thecontacts 56, 57 of a switch 58 which is controlled by the cam 22. Asshown, the contacts 56 and 57 are closed together by the cam 22 when thetimer is in the wash portion of the cycle. It will be noted,incidentally that the switch 58 further includes another contact 59 andthat the cam 22 can maintain the switch contacts in three ditierentconditions, i.e., no engagement at all between the con tacts at thelowest level of the cam, contacts 56 and 57 engaged at the intermediatelevel of the cams, and all three contacts 56, 57 and 59 engaged at thehigh level of the cam. From the contacts 57 the water supply circuitextends through a conductor 69 to movable contact 61 of a flow switch 62which comprises one of the control elements for the suds saver systemincluded in the machine 1. This suds saver system and the use of thefiow switch 62 in its control will be described hereinafter in detail.The movable arm 61 of the fiow switch 62 is normally closed against afixed contact 63 unless stored water is being returned from a storagereceptacle to the wash basket 2, and assuming that such action is nottaking place, the valve means circuit continues from the fixed contact63 through .a conductor 64 to the solenoid 54 of the hot water valve 55.From the other side of the solenoid 54 the circuit continues through aconductor 65 and the contacts 66, 67 of a switch 68 controlled by thetimer operated cam 21 to the conductor 38, the contact 67 beingconnected to the conductor 38 by a connection 69. When the timer is inthe wash range the cam 21 closes together the contacts 66, 67 of theswitch 68 and further engages with them a third contact 69, but duringthe filling of the machine with rinse water, which takes place at alater time in the cycle, the cam 21 operates the switch 68 so that thecontacts 66, 67 and 70 are all disengaged from each other and thecontact 67 is brought .into engagement with a fourth contact 71. Thecircuit completed by switch 68 for the rinse fill will be describedhereinafter.

If it is desired to supply warm water to the basket 2 rather than hotwater, then a manually actuated switch 72 is closed. This closes acircuit energizing the solenoid 73 of a cold water valve 74 in parallelwith the hot water solenoid 54, whereby both hot and cold water, i.e.,warm water, are supplied to the machine. The closing of the switch 72specifically energizes the cold water solenoid 73 between the conductors64 and 38 through the conductors 75, 76 and 77.

From the conductor 38, the valve circuit continues through a conductor78 to the timer motor 19 and thence through conductors 79 and 80 and theswitch 27 back to the other side 25 of the power supply. From theconductor 38 the valve circuit also extends back to the supply line 25through an alternate path including both the start winding 44 and themain or run winding 81 of the drive motor 12. Specifically the valvecircuit extends to the one side of the main winding 81 through aconductor 82 and continues from the other side of the winding '11 to theconductor 80 and the power supply through a motor protective device 51,the conductor 39 and the contacts 83, 84 of a switch 85 controlled bythe cam 20. The contacts 83, 84 are, as indicated, closed when the timeris in the wash portion of the cycle. The startwinding 44 is connected inthis circuit by means of the double pole, double throw motor reversingswitch 43 controlled by the cam 23. From the conductor 38 the circuitextends to the start winding through the contacts 47, 45 of 84 of theswitch 85, the conductor 8!) and the manually operated switch 27 to thepower supply line 25.

. With the timer motor :19 and the start and main windings 44 and 81 ofthe drive motor 12 being connected in parallel branches, a much lowerimpedance is presented in the circuit by the motors than is presented bythe valve solenoid 54. As a result the greater portion of the supplyvoltage is taken up across the solenoid 54 and relatively little acrossthe timer and drive motors. This has the result that the solenoid 54 isenergized to open the valve 55 to admit hot water to the machine but thetimer and drive motors remain inactive. If switch 72 is closed, solenoid73 will be energized too so that the cold water is introduced with thehot water to provide a warm water fill, the solenoids 54 and 73 evenwhen connected in parallel still presenting a much higher impedance thanthe parallel connected timer and drive motors. If the agitate speedswitch 28 is in its position at this time wherein the contact 30 engagesthe contact 32 the solenoid will, of course, be connected in parallelwith the timer and drive motors. But even if it is so connected thismerely has the result of further lessening the impedance between theconductors 38 and 39 and does not afiect in any way the operation of thevalves. In other words the valve solenoids are still energized to openthe valves.

With the hot water valve or both valves open, water is introduced intothe wash basket 2 to fill it until such time as the water reaches thelevel of the overflow apertures 86a provided at the upper end of thebasket side wall (see Fig. 1). When the water reaches this level, itthen overflows through these apertures 86a into the tub 3 forming a poolof water in the tub. The filling of the tub continues for a short timeuntil a water level responsive switch 87 (Fig. 2) in the bottom of thetub is closed. The switch 87 as shown in Fig. 6 is connected directlybetween the conductors 60 and 38 and when it is closed, these conductorsare thereby shorted together. This shorts out the water valve solenoidsor solenoid and connects the timer motor and the drive motor directlybetween the conductors 60 and 80.

These conductors being energized at supply voltage, both the timer motorand the drive motor are thereby placed in operation to commence thewashing operation of the machine. It will be noted that the circuit inaddition to the water level responsive switch 87 also includes amanually operable, water saver switch 88 by means of which theconductors 60 and 38 may be shorted together by the operator at anytime. This normally open, water saver switch provides for terminatingthe filling operation and starting the timer and drive motors 19 and 12when less than a full load of water has been introduced into the basket2.

Once either of the switches 87 or 88 is closed so that the timer motorand drive motor are energized with full line voltage between theconductors 38 and 39, both motors begin operation. Initially both themain winding 81 and the start winding 44.0f the drive motor 12 areenergized but as soon' as the motor comes up to speed the centrifugalswitch 53 opens so as to remove the start winding from the circuit. Withthe motor reersin'g switch 43 in the position shown in Fig. 6 thepolarity of the start winding is such that the motor 12 rotates in thedirection for causing operation of the agitator. In other words, thedrive means of the machine is in' a first condition wherein, once thefilling of the machine is completed, the motor '12 drives the agitator 5with an oscillatory motion about its axis with the spin basket 2remaining relatively stationary. Besides 'opening the switch 53 theoperation of the main drive motor also causes the closing of thenormally open, motor operated centrifugal switch 89 which is connectedbetween the conductors-60 and .38. This closing of the switch 89 resultsin the power being kept on the timer and drive motors even if the levelof 'water in the tub should decrease below that necessary to keep theswitch 87 closed. The centrifugal switches 53 and 89 are preferably bothoperated from the same centrifugal mechanism 90 driven by the drivemotor 12.

Whether the agitation will be low speed or high speed is controlled bymeans of the switch 28. If the movable contact 30 of the switch ispositioned in engagement with the contact 31, in that case there can beno connection between the conductor 39 and the solenoid whereby thesolenoid remains de-energized. The clutch 13 is thus conditioned so thatit provides a direct continuous drive between the drive motor 12 and itsoutput pulley 14 and thereby the agitator is driven at high speed.However, if the movable contact 30 is positioned in engagement withcontact 32, in that case the terminal 36 of the speed control solenoid15 is energized from the conductor 39, and since the opposite terminalof the solenoid is connected to the conductor 38 no matter whichposition the spin speed switch 29 is in, the speed control solenoid 15is thereby energized. This results in the clutch mechanism providing itsreduced speed drive between the motor "12 and the output pulley 14 andthereby in the reduced speed operation of the agitator. As was pointedout above, if the spin speed switch movable contact 33 is in engagementwith contact 34, the solenoid terminal 37 is energized from theconductor 38 through the conductor 42. On the other hand if the movablecontact is in engagement with the contact 35, in that case the terminal37 is energized from the conductor 38 through the contacts 47, 45 of themotor reversing switch and the conductors 52 and 42. Thus, in summary,it the movable contact 30 of the agitate switch is moved into engagementwith the contact 32 the solenoid 15 is energized for a reduced speedoperation of the agitator, whereas if the contact 30 is moved intoengagement with the contact 31 in that case the solenoid is de-energizedand the agitator is driven at its high or normal speed.

Concurrently with the operation of the agitator, at either high or lowspeed, the drive motor 12 also drives a pump 91 which is mounted on thebottom wall of the tub 3. The output shaft of the motor 12 extendsupwardly through the two speed clutch 13 and is connected to the inputshaft 92 of the pump by means of a flexible coupling 93. With thisdirect coupling between the motor and the pump 91, the pump is drivenwhenever the motor is in operation. The pump 70 during its operationwithdraws liquid from the tub 3 through a suitable strainer assembly 94mounted over its inlet.

In the illustrated embodiment the pump 91 is a bidirectional pump whichdischarges into one of two outlets depending upon the direction of pumprotation. A lei-directional pump of this sort is described in detail andclaimed in the copending application of John Bochan 818,468,460 filedNovember 12, 1954, and assigned to the same assignee asthepresentinvention. In the machine 1 one of the two outlets of the pump 91is connected to a recirculation hose or conduit 95 for returning theliquid withdrawn from the tub 3 to the basket 2; and the other of theoutlets of the pump is connected to a drain hose 96. The drain hose 96leads to suds saver system, which as will be described hereinafter,provides for either storing the liquid discharged through the drain hose96 or else discharging it to a suitable waste line. During the directionof the motor rotation corresponding to the driving of the agitator 5,the pump output is discharged through the one outlet to the conduit 95for return to the basket through a filter 97 mounted on the agitatorpost. Conversely, upon rota tion of the drive motor in the reversedirection for spinning the basket 2, the liquid is pumped through theother outlet to the drain hose 96. Thus, during the agitation the pump91 causes a continuous overflowing of the basket 2 so that a continuousre-circulation and filtering action is provided, whereas duringspin orcentrifugal extraction the pump empties the machine.

The washing operation continues with the movement of the agitator, ateither high speed or low speed depending upon setting of the switch 28,and with the recirculation flow through the filter 97 until such time asthe timer motor 19 reaches the first region marked pause in the camchart of Fig. 7. At that point cam 20 opens the contacts 83, 84 ofswitch 85. This removes power from the drive motor 12 and thereby haltsthe operation of the agitator and the pump 91. It also deenergizes thespeed control solenoid 15 if it was energized during the agitatormovement. The stopping of the motor 12, of course, also results in theopening of the centrifugal switch 89 which connected together theconductors 60 and 38 during the washing period. However, power is notremoved from the timer motor 19 as a result of this opening of theswitches 85 and 89 because a power circuit is still completed to it fromthe conductor 60 through the valve solenoid 54 or both solenoids 54 and73 if the switch 72 is closed. The timer is so constructed that itsimpedance is much greater than that of the valve solenoids and thus ittakes up most of the Supply voltage and continues in operation. Thesolenoids in fact assume so little of the voltage that they are noteffective to open their respective valves 55 and 74.

To point out positively at one place the impedance relationships betweenthe valve solenoids 54 and 73, the timer motor 19 and the drive motor12, it will be understood that when the windings of the drive motor andthe timer motor are connected in parallel branches in series with thevalve solenoids, then the solenoids are operated, but when the drivemotor is removed from the circuit and only the timer motor is connectedin series with the valve solenoids then the timer motor is operated andthe solenoids are not. This latter condition of course exists duringpause a. The connection of the speed control solenoid 15 in parallelwith the windings of the drive motor does not any way change theseimpedance relationships. It the solenoid 15 is connected in parallelwith the drive motor while the switch 85 is closed, it merely reducesthe impedance between the conductors 38 and 80 still further whereby thevalve solenoids are still energized, and since it is always re movedfrom the circuit at the same time as the drive motor by the switch 85,it has no effect when the timer motor is energized through the valvesolenoids.

As the timer continues to run during pause a, it will be noted that thecam 23 causes the operation of the motor reversing switch arms orcontacts 45, 46 from their illustrated positions wherein they engage thecontacts 47, 48 respectively to a second position wherein the arm 45engages the contact 48 and the arm 46 engages the contact 49. This hasthe efiect of reversing the polarity of the start winding 44 when poweris again applied to the drive motor. When the timer runs to the end ofpause a at that time the cam 22 closes together all three contacts 56,57, and 59 of switch 58 and then the cam 20 again closes the contacts83, 84 of switch 85. This places power on both the main winding 81 andthe start winding 44 of the drive motor between conductors 38 and 39.However, since the polarity of the start winding 44 is now reversed, themotor begins to rotate in the reverse direction from that in which itrotated during the Wash period. In other words, the drive means of themachine is now in a second condition in which the wash basket 2 isdriven at high speed for extracting the wash water from the clothes.Further, the pump now discharges into the discharge hose or conduit 96rather than to the re-circulation conduit 95.

The speed of the spin basket during this centrifugal extraction periodis controlled by means of the switch 29. If the switch is operated sothat the movable contact 33 engages the contact 34, in that case thesolenoid 15 is energized and a low speed spin is produced no matter inwhich position the agitate switch 28 is set. But if the spin speedswitch 29 is operated reversely so that the contact 33 engages thecontact 35, then the spin solenoid 15 cannot be energized and the basketwill rotate at high speed regardless of the position of the agitateswitch 28. During this spin period both the terminals 31 and 32 of theagitate switch are energized at the potential of the line 39. Thecontact 32 is energized directly from the line 39 through the conductor41 and the contact 31 is energized therefrom through the conductors 42and 52, the contacts 49 and 48 of the motor reversing switch, theconductor 50 and the motor protective device 51. Therefore, no matter inwhich position the contact arm 30 is placed the terminal 36 of thesolenoid is energized at the potential of the conductor 39, and thusthe-spin speed control depends entirely upon how the other terminal 37is energized by the switch 29. If the switch 29 is operated so thatcontact 33 engages the contact 34, in that case the terminal 37 isconnected directly to the other power supply conductor 38 and thesolenoid is energized for its slow speed operation. Conversely, if thecontact 33 is engaged with the contact 35, then both terminals of thesolenoid are tied to the same electrical point and it will not beenergized. Thus, as pointed out above, the switch 29 independentlydetermines the speed of the basket 2 during this spin operation.

As the water is discharged from the tub 3 through the drain pump 91 andthe discharge hose 96, it may, by means of a suds saver system providedin the machine 1 either be stored in a set tub 98 (Fig. 2) or else bedischarged into a drain line 99 at the option of the operator. Theplumbing arrangement of the particular suds saver system included in themachine 1, it will be understood, is not my invention but rather is theinvention of Philip H. Houser, and its arrangement, including itsconduits, valves and pump means, is fully described and claimed in hiscopending application S.N. 626,702 filed December 6, l 6, and assignedto the same assignee as the present invention. In order to control thedisposition of the liquid being emptied from the tub the suds saversystem includes valve means in the form of a two way distribution valve100. This valve 100 as shown is incorporated within the same casing as acompletely separate shut-oil? valve 101, whose purpose will be explainedhereinafter, and the valves are separated from each other by means of aninterior wall 102 of the valve casing (Fig. 3). The two way distributionvalve includes a central inlet port 103 which is connected to thedischarge hose 96 of the tub and two separate outlet ports 104 and 105which are connected respectively to a drain hose 106 and a storage hose107. Both of the hoses or conduits 106 and 107 extend out of the casing4 of the washing machine and as may be best seen in Fig. 2 the drainhose 106 has its discharge end adapted for emptying into the drain 99which leads directly to the household waste line. The storage hose 107on the other hand has its outer end adapted for communication with, ormore accurately disposed within, the

- set tub 98 which acts as 15 a storage reservoir. It will thus be seenthat if the flow is discharged from the valve 100 to the drain hose 106,it will be emptied into the drain 99 and thereby into the householdwaste line. Co versely, if it is passedoutwardly to the hose 107, itwill be discharged into the reservoir or tub 98 for storage.

In order to control which of the hoses 106 or 107 carries the flow, i.e.in order to control whether the liquid is emptied to the drain orstored, the valve 100 includes a pair of valve disks 108 and 109 whichare formed as part of a flexible diaphragm 110. The valve disks 108 and109 are actuated by means of a solenoid 111 through a pivoted controlmember or lever 112. The control lever 112 is pivoted intermediate itsends to the cover plate 113 of the valve casing, and one side of thepivot is attached to the valve disk 108 and on the other side of thepivot is attached the valve disk'109. The connection to the disk 109 ismade through a suitable cross arm 114 as shown in Fig. 3. When thesolenoid 111 is deenergized, its armature 115 and the lever 112 assumethe position illustrated in Fig. 4 wherein the port 104 leading to thedrain hose is open and the port 105 leading to the storage hose isclosed by the valve disk 108. Conversely, when solenoid 111 isenergized, the armature 115 is pulled inwardly and the lever 112 ispivoted so that the disk 109 closes the port 104 leading to thedrainhose and the disk 108 is moved away from the port 105 so as to opencomrhunication with the storage hose. In other Words in the de-energizedposition of the solenoid 111 communication is provided between the inletport 103 and the drain port 104, whereas when the solenoid is energized,communication is provided between the inlet port 103 and the storageport 105. Thus, if it is desired to store the wash water, the solenoid111 should be'energized during the centrifugal extraction operationfollowing the washing operation. However, if it is not desired torestore the wash water, then the solenoid should be. left de-energizedand the water will be passed to the drain through the port 104 and thehose 106. 1

Assuming that the machine 1 has progressed through the washing stage andinto the first centrifugal extraction operation as described above,whether or not the Wash water will be saved as it is discharged from thetub depends upon suitable control means for the distribution solenoid111, which are provided in my control system. Specifically, whether ornot the wash Water will be saved depends upon the position of a manuallyoperated switch 116 connected in a circuit for energizing the solenoid 111. As shown in Fig. 6 the solenoid 111 is connected in series circuitrelation with the switch 116 between the contact 70 of the inlet valvecontrol switch 68 and the movable contact 45 of the motor reversingSwitch 43. Specifically, commencing with the contact 70 the distributionsolenoid circuit extends through a connector 117 to the manual controlswitch 116, thence through a conductor 118 to the distribution solenoid111 and from the solenoid is completed to the contact 45 through theconductors 119 and 52.

Since the lower three contacts 67, 66 and 70 of the switch 68 are stillconnected together by the cam 21 during this first extraction or spinoperation, the contact 70 is, therefore, energized at the potential ofthe conductor 38. In other words, it is at the potential of the side 24on the power supply. The contact arm 45, however, is at the potential ofthe other side of the power supply. The contact 45 during the extractionoperation engages the contact 48, and it, of course, is connected to theconductor 39 and thereby to the other side power supply through theconductor 50 and the motor protector 51. With the solenoid 111 connectedbetween the contacts70 and 45 by the switch 116, it will thus be seenthat if the switch 116 is closed, the solenoid 111 will beenergized withthe supply voltage. Conversely, if the switch 116 is open, the solenoidwill not be energized. Thus, if it is desired to save the wash water,the switch 116 is closed energizing the solenoid 111 and therebyoperating the distribution valve 100 to its save positionwherein theWater is passed through the hose 107 to the set tub. On the other handif it is desired to pass the Water to the drain through the hose 106,the. switch 116 is opened whereby the solenoid remains in theillustrated, de-energized position and the valve discharges into thehose 106.

It will be noted that although the solenoid 111 can be energized throughthis circuit during the centrifugal extraction following the washingoperation, it could not be energized during the washing operationitself. During the washing operation the motor reversing switch 43, isof course, in its illustrated postion wherein the contact 45 engages thecontact 47. Thus, during washing the conductor 119' leading to the oneside of the solenoid is connected to the conductor 38 through the motorreversing switch, which places it at the same potential as the line 117leading to the other side of the solenoid. In other words both sides ofthe solenoid 111 are connected to the line 38 during the washingoperation whereby it cannot be energized. This, of course, not onlysaves electrical current but also avoids unnecessary operation of thesolenoid.

The rotation of the spin basket at either of the high or low speeds ascontrolled by the switch 29, and the draining or storage of the washliquid as controlled by the switch 116 continue until the timer reachesthe first coast period, the timer, of course, being energizedconcurrently with the drive motor between the conductors 38, 39 duringthe spin period. When the first coast period is reached, at that timethe cam 20 opens the contacts 83, 84 of the switch 85 for a briefperiod. This removes power from the drive motor 12 and allows the basket2 to coast toward a stop. It has been found that the interruption of thespin period is very effective in avoiding suds locking of themachine.The spin solenoid 15 and the distribution solenoid 111 are alsode-energized during the coast period since they too are energizedthrough the switch 85, but since the positions of the other time camoperated switches are not changed at this point of the machineoperation, the timer motor 19 continues to run continuously duringthefirst coast period.

At the end of the first coast period the cam 20 again closes thecontacts 83, 84 of the switch 85. This places power once more on thedrive, motor 12 and it again begins to drive the wash basket and thedrain pump. Also, power is again placed back on the spin solenoid 15 andthe distribution solenoid 111 if theirrmanual control switches 29 and.116 are set in the correct position to energize them. Thus, as thesecond portion of the wash Spin operation proceeds, the spin basketrotates at the same. speed, either high or low, as it rotated durlng thefirst portion of the operation, and the water discharged from the tub isstored or passed to the drain 99 the same as during the first portion ofthe operatlon,

i The spin period, at high or low speed depending upon the setting ofthe. switch 29, and with the saving or draining of the wash waterdepending upon the settlng of the switch116, continues until such timeas the second coast period is reached. At that time the cam 20 opens thecontacts 83, 84 and removes power from the drive motor and the solenoids15 and 111. With the motor 12 de-energized, the driving force is removedfrom the wash basket 2 andit begins to coast to a stop. As the coastperiod continues, the cam 21 operates the switch 68 so that the contact67 disengages the contact 66 and moves into engagementwith the contact71. Also, the contact 66 is disengaged from the contact 70 so that thecontactsr 67, 7:1 are the only engaged contacts of the .SWitCh. Theopening of the. contacts 66, 70, it will be :seen, positively opens thecircuit for. the distribution solenoid 111 so that it can no longer beenergized no matter what the position of the switch 116. In additiontothe switching action performed by the cam 21 the cam 22 also operatesthe contacts of the switch 58 so that the contacts 57 and 59 aredisengaged although the contacts 56 and 57 still remain together. Theoperation of the switches 68 and 58 however does not remove power fromthe timer motor 19 since it is now energized through the solenoid 73 ofthe cold water valve 74. The switch 68 is operated slightly before theswitch 58 and once the switch 58 is operated, i.e., the contacts 57 and59 disengaged, the circuit for the timer motor then extends through thecontacts 56, 57 of the switch 58, conductor 60, contacts 61, 63 of theflow switch 62, and conductors 64 and 75 to the cold water solenoid 73.From the solenoid 73 the timer circuit continues through the conductor121) to the closed contacts 71, 67 of switch 68 and from there throughconductors 69, 38 and 78 to the timer motor. The circuit is completedfrom the other side of the timer motor through the conductors 79 and 8tand the manually operated switch 27 as before. As mentioned above, theimpedance of the timer motor 19 is considerably greater than that of thevalve solenoid 73 whereby the timer motor continues to run but there isnot enough of a voltage drop across the solenoid 73 to cause opening ofthe cold water valve.

Besides the switching operation performed by the cams 21 and 22, the cam23 also operates the motor reversing switch 43 during this coast period.Specifically, it once more reverses the position of the contact arms 45,46 bringing them into engagement respectively with the fred contacts 47,48. This reverses the polarity of the start winding 44 back to itsoriginal connection.

The second coast period continues with the timer motor running untilsuch time as the cam 29 closes the contacts 83, 84 of the switch 85.This connects the start and run windings 4-4 and 81 of the drive motorin par allel with the timer motor 19 and thereby a relatively lowimpedance is presented between the conductors 38 and 89. The supplyvoltage thereby divides differently with the greater portion of thevoltage drop now appearing across the valve solenoid 73 and a relativelylow voitage drop appearing across the timer motor 19 and the windings ofthe drive motor 12. Depending upon the setting of the switch 28 the spinsolenoid may also be connected in parallel with the timer and drivemotors at this point, but the only efiect of its being in the circuit isthat the impedance is still further lowered between the conductors 38,39 causing even more of the voltage drop to appear across the valvesolenoid 73. The timer motor therefore immediately stops running,whether or not the spin solenoid is connected in the circuit, and thesolenoid 73 opens the cold water valve 7% to introduce cold rinse waterinto the wash basket 2. If it is desired to introduce warm water ratherthan cold water into the basket 2 for rinsing the clothes, in that casea manual switch 121 is closed by the operator. The switch 121 whenclosed connects the hot water solenoid 5'4 in parallel with the coldwater solenoid 73 and thereby causes the opening of the hot water valve55 in addition to the cold water valve 74. With both valves 55 and 74open, both hot and cold water are introduced whereby the basket isfilled with warm water for rinsing.

The machine continues to fill with rinse water until such time as eithersuflicient water is overflowed into the tub 3 to close the water levelswitch 87, or else the water saver switch 88 is manually operated. Wheneither of these occur, the water valve solenoid or solenoids are shortedout and the conductor 38 is connected directly to conductor 60. Thisagain applies line voltage to both the drive motor and the timer motor.The timer motor thereby begins to drive the cams -23 and the drive motorbegins to drive the agitator 5 with an oscillatory motion in the basket.If the agitate speed switch 28 is set with its contact in engagementwith the contact 32, the speed control solenoid 15 will also beenergized so as to cause a low speed operation of the agitator.Conversely, if the switch is set with its contacts 30 and 31 inengagement, the speed control solenoid will not be energized so that theagitator will be driven at high speed. Concurrently with the operationof the agitator, the drive motor 12 also drives the pump 91 andspecifically in the direction to recirculate the rinse Water through thehose 95 into the basket 2. The rinsing operation continues with theoperation of the agitator and re-circulation system until a second pausein the cam chart of Fig. 7 is reached. At that time the cam 20 againopens the contacts 83, 84 removing power from the drive motor and alsofrom the speed control solenoid 15 if it should be energized. The timermotor continues to run, however, and during the pause, the cam 23 againreverses the position of the switch arms 44, 45 reversing the polarityof the start winding and the cam 22- again closes all three contacts 56,57, 59 of switch 58.

As the end of the second pause is reached, the cam 20 closes thecontacts 84, 85. The drive motor is, thus, again energized. As saidpolarity of the start winding 4 is reversed, the motor then begins torotate in the direction so as to drive the spin basket 2. Depending uponthe setting of the switch 29 this rotation of the spin basket will beeither at high speed or low speed, the

solenoid 15 being controlled by exactly the same circuit as during thefirst spin operation. With the spin basket rotating, the rinse water isthereby thrown out or more accurately is centrifugally extracted fromthe clothes. Also, with the motor 12 running in the centrifugalextraction direction, the pump 31 is driven in the direction so that thewater in the tub is discharged through the discharge hose 96. This rinsewater passes into the distribution valve 109 which during this secondcentrifugal extraction operation is positively held in its drainposition. During this second period the distribution solenoid 111 cannotpossibly be energized since its circuit is broken at the disengagedcontacts 66, 70. Thus, the rinse water is discharged out of the machinethrough the hose 106 into the drain 99. This second extraction operationcontinues until such time as the cam 22 opens all three contacts 55, 57and 59 of switch 58. This removes power completely from all componentsof the machine 1 and the machine thereby comes to a stop. The operatormay then remove the clean clothes from the machine.

The remaining function of the machine 1 which may be effected by mycontrol system and which has not been described above is the return ofstored water from the tub 98 to the basket 2 for use in a subsequentwashing operation. In order to return the stored water from thereservoir or set tub 98 when it is desired to reuse it for washinganother load of clothes, there is provided within the suds saver systema return pump 122 which is driven by means of a separate fan cooledmotor 123. The intake of the return pump 122 is connected to the storagehose 197 at a point 124 intermediate its ends by means of anotherrelatively short hose or conduit 125, and the outlet of the return pumpis connected to the inlet port of the aforementioned shut-ofi valve 101by means of another relatively short hose or conduit 127. Thus, it willbe seen that when the return pump 122 is operated, it is efiective towithdraw the stored liquid from the tub 23 through the outer portion ofthe hose 107 and the hose and discharge through the hose 127 to theintake of the shutoff valve 161.

The valve 161 is provided with a single outlet port 128, andcommunication between the inlet port 126 and the outlet 128 iscontrolled by means of a valve disk 129 adapted to seat on the inner endof the inlet port. The valve disk 129 is formed as a part of the samediaphragm 11% as are the valve disks of the distribution valve 109, andit is actuated by means of the same solenoid 111 and connected lever112. The valve 129 is specifically actuated from the lever 112 by meansof the same cross bar 114 as the valve disk 169. When the solenoid is inits illustrated or de-energized position the valve-disk 129,

as shown, -is lifted offthe inlet 126 so that the inlet and the outlet128 are in open communication. However,

The outlet 128 of the shut-off valve 101 is connected to a return hose130 which is adapted to discharge into the wash basket-2. Specifically,the hose 139 extends upwardly within the casing 1 of the machine to apoint above the wash basket, and at its upper end is provided with adischarge nozzle 131 which discharges into the basket 2 through the opentop thereof. In summary, the conduit system for returning the liquidfrom the reservoir 98 to the wash basket 2 thus comprises the outerportion ,ofthe hose 107 and the hose 125 from the reservoir to thereturn pump 122. From the pump 122 the stored liquid then passes throughthe hose 127, the shut-off valve 101 and the hose 130 and its nozzle 131in the wash basket.

. As will be explained shortly, the solenoid 111 is deenergized duringthe period that the return flow takes 7 place so that the shut-off valve121 is held open to allow the passage of flow therethrough. The shut-offvalve 1111 is, however, closed during'the wash drain period when thesolenoid 111 is energized'so as to operate the distribution valve 100 tothe storage position. This closing 10f the shut-off valve closes off thereturn hose 1313 from ,the storage hose 107 and thereby prevents anyshort circuiting of the storage flow back into the wash basket throughthe return hose.

'In order to return the stored liquid from the reser- Voir 98 'to thewash basket 2, for washing a second load iof clothes, the timer 19 isfirst adjusted into the wash range, i.e., to its position shown in Fig.6, and the switch 27 is closed. This, as explained above, begins toenergize the hot water valve 54 for adding hot Water to the machine.However, in order to fill the machine with the stored water rather thanusing fresh hot water a normally open, manually operated switch 132 isthen closed. This switch 132 energizes the pump motor 123 from theconductor 60 through a conductor 133. From the other side of the pumpmotor the circuit extends through a 'cpnnector 134 to the conductor 38and thence is completed through the parallel connected timer and drivemotors to the conductor 39 and the other side of the line. The motor 123is of appreciably greater impedance than the parallel connection of thedrive motor and the timer motor and thereby the voltage drop across itwhen n the switch 132 is closed is relatively great as compared liquidfrom the tub 98 through the hoses 197 and 125 p and passes it into'thebasket through the hose 127, the shut-off valve 191 and the hose 133.

The shut-off valve 101 is positively open during this period becauseboth terminals of the solenoid 111 are .7 connected to the sameelectrical point. Specifically, the conductor 117 energizing the oneside of the solenoid is connected to the conductor 38 through thecontacts 70,

7 66 and 67 of the switch 68, and the connector 119 connectedto theother side of the solenoid is connected to flow passing through thereturn hose 130. The chamber 136, as shown, opens off the hose 130 andis connected to the switch 62 by means of a suitable pressure line ortube 137. 'When there is flow through the hose 130, .a pressure iscreated in the chamber 136-which'corn- ,presses the column of air in theline 137 and thereby applies pressure'to the switch 62 to operate it.This pressure specifically operates a control diaphragm 1'38 oftheswitch 62 so as to move the switch arm from its .normal position to itsoperated position. In other Words it causes the contact arm 61 todisengage contact 63 and engage the contact 136. Conversely, when thereis no flow through the hose 130, the pressure in the chamber 136 is ator near atmospheric and thus no pres- .sure is applied to thediap'nragm138. The diaphragm of the switch 62 then assumes its normal positionwith the contact arm 61 engaging the contact 63.

The operation'of the switch62 upon the starting of the .return fiowprovides a holdingor. lock-in circuit around the manually operatedswitch 132 whereby that switch may now be released andthe return pumpwill be continued in operation. Also, the operation of the switch 62 byopening the contacts 61, 63 opens the energizn'lg circuit for the valvesolenoids 54 and 73. This opening of the. valve circuit removes thepower from the valve solenoids and thereby no fresh water is introducedinto the machine until thereturn flow from the set tub- 98 ceases. Thearrangement of a fiow switch to provide certain other results some ofwhich are mentioned hereinafter, is fully described and claimed in mycopending application, S.N. 626,701, filed on December 6, 1956, nowPatent No. 2,920,469, and assigned to the'same assignee as the presentinvention.

The return pump 122 continues to withdraw the stored liquid from the tubwith the valve solenoids 54 and 73 de-energized until substantially allthe liquid is removed from thetub. At that point the flow through thereturn hose 130.cease and the flow switch returns to its normalposition,that is, the contact arm 61.disengages the contact 136 and re-engagesthe contact 63. This 1 removes power fromthe return pump motor 123 andrecloses the valve circuit. When the valve circuit is closed, the watervalves thereby automatically beginto introduce any make-up waternecessary to complete the filling f the tub. The fillingof fresh watercontinues until such time as the water level switch 87 closes to ,beginthe operation of the agitator.

It will be noted, incidentally, that the operator, if she wishes, canterminate the operation of the return pump by means of the water saver88 before all the stored liquid is returnedto the machine. Since thereturn pump motor 123 is energized between. the conductors and 38 theclosing of the switch "88 is effective to short out the return pumpmotor 123 in the same manner as the valve solenoids 54 and 73. Also, itwill be noted that since the return pump is placed in operation onlywhen the operator closes the switch 132, she may,

the same connector 38 through the conductor 52 and the contacts 45, 47of the motor reversing switch 43. With the solenoid de-energized theshut-ofi valve 161, of course, remains in the open position.

WAsthe flow begins to pass throughthe return hose 130.it then operatesthe fiowswitch 62 so that its moveable contact 61 disengages from thecontact 63 and engages a second contact 136. The flow switch62 'maybearranged in any suitable manner so that it is,

operated by the flow through the return hose but in the illustratedembodiment there is shown a pressure operated switch which is actuatedby the increased pressure created is a pressure chamber 136 when thereis with fresh water.

operation.

engaged.

'if she wishes, allow themachine to fill partiallywith .fresh water toheat up the stored water to a desired washing temperature; When thebasket is first" filled 'partially with fresh water in this manner, itis likely that the wash basket will be filled before the reservoir 98 isdrained. The water level switch 87 is, however, efiective to terminatethe filling of the machine in this instance in the same manner as if itwere being filled Specifically, the closing of the switch .87 shorts outthe return pump motor 123 andadditionalv1y it places the timer motor 19and the drive motor 12 in operation so that the machine begins thewashing Asthe return flow ceases due to. the shorting out of the motor123, the switch 62 returns to its normal position-wherein the contacts61 and 63am Summing up with regard to my .new and improved controlsystem, it will be seen that it provides for independent selection ofthe agitate speed and the spin speed. In other words it allows theoperator to select either of the agitate speeds without afiecting thespin speed, and to select either of the spin speeds without afiectingthe agitate speed. In my preferred embodiment separate switches are, ofcourse, provided for selecting the two speeds. Also, in my preferredembodiment, the motor reversing switch means are used for energizing oneof the connections for the speed control solenoid so that the connectionis energized from one side of the power supply during the agitation andis energized from the other side of thepower supply during the spin. Theuse of the motor reversing switch avoids the necessity of providinganother timer operated switch within the circuit to perform thisfunction. Additionally, the motor reversing switch is further used, inaccordance with my invention, in the circuit for the distribution valvesolenoid of a suds saver system. In my preferred system the motorreversing switch is combined with the valve control switch for the waterinlet valves so that together the two switches control the circuit forthe distribution solenoid. They specifically allow for the energizationof the circuit during the wash extraction period and at no other time,and thereby the need is eliminated for a special timer switch to performthat function.

While in accordance with the patent statutes I have described what atpresent is considered to be the pre ferred embodiment of my invention itwill be obvious to those skilled in the art that variou changes andmodifications may be made therein without departing from the invention,and it is, therefore, aimed in the appended claims to cover all suchchanges and modifications as fall within the true spirit and scope ofthe invention.

What I claim as new and desired to secure by Letters Patent of theUnited States is:

1. In a clothes washing machine adapted to proceed through apredetermined cycle of operations for washing and drying clothes, arotatable wash basket, clothes agitating means disposed within said washbasket, drive means including a drive motor and a two speed clutchmechanism for driving said agitating means at either of twopredetermined speeds for washing clothes, and for rotating said basketat either of two speeds for extracting water from said clothes, saiddrive means being alternatively arranged in one of two difierentoperative conditions and driving said agitating means when in one ofsaid conditions and rotating said basket when in the other of saidconditions, a solenoid for controlling the operation of said clutchmechanism thereby to control the speed of operation of said agitatingmeans and said basket, and manually operable control means forselectively and independently energizing said solenoid during theoperation of said agitating means and the rotation of said basket, saidcontrol means comprising a first switch means for con trolling theenergization of said solenoid during the operation of said agitatingmeans, and a second switch means for controlling the energization ofsaid solenoid during the rotation of said basket, said first conditionof said drive means making said first switch means efiective to controlsaid solenoid, said second condition of said drive means making saidsecond switch means effective to control said solenoid, whereby eitherof the speeds of said agitating means and either of the basket speedsmay be combined for washing and drying the clothes.

2. In a washing machine having a rotatable wash basket, an agitatordisposed within said basket, drive means including a reversible drivemotor and a two speed clutch for driving said agitator and rotating saidbasket each at two different speeds, said drive means driving saidagitator upon the rotation of said drive motor in one direction androtating said basket upon the rotation of said drive motor in thereverse direction, a timer mechanism for controlling the sequence ofoperations of said machine, said timer mechanism including motorreversing switch means for controlling the direction of rotation of saiddrive motor, and a solenoid for controlling said two speed clutch toselect between high speed and low speed operation of said agitator andsaid basket, control means for selectively energizing said solenoidduring the respective operations of said agitator and said basketthereby to control independently the agitator speed and the basketspeed, said control means comprising first and second power supplyconnections for said solenoid, means for impressing a voltage sufficientto operate said solenoid across said first and second connections duringthe operation of both said agitator and said basket, a third powersupply connection for said solenoid, circuit means including said motorreversing switch means energizing said third connection from said firstpower supply connection during the operation of said agitator and fromsaid second power supply connection during the rotation of said basket,and a pair of switches for selectively energizing said solenoid fromsaid connections, one of said switches being arranged for connecting oneterminal of said solenoid selectively to said first connection or tosaid third connection, and the other of said switches being arranged forconnecting the other terminal of said solenoid selectively to saidsecond connection or to said third connection, whereby said one switchcontrols the speed of said basket and said other switch controls thespeed of said agitator.

3. In a washing machine having a rotatable wash basket, agitating meansdisposed within said basket, drive means including a drive motor and atwo speed clutch for driving said agitating means and rotating saidbasket each at two ditferent speeds, a timer mechanism for controllingthe sequence of operations of said machine, and a solenoid forcontrolling said two speed clutch to select between high speed and lowspeed operation of said agitating means and said basket, control meansfor selectively energizing said solenoid during the respectiveoperations of said agitating means and said basket thereby to controlindependently the agitating means speed and the basket speed, saidcontrol means comprising first and second power supply connections forsaid solenoid, means for impressing a voltage sufficient to operate saidsolenoid across said first and second connections during the operationsof both said agitating means and said basket, a third power supplyconnection for said solenoid, and circuit means including switch meansoperated by said timer mechanism for energizing said third connection atthe potential of said first power supply connection during the operationof said agitating means and at the potential of said second power supplyconnection during the rotation of said basket, and switch means forselectively energizing said solenoid from said connections, said switchmeans being arranged for connecting one terminal of said solenoidselectively to said first connection or to said third connection, andfor connecting the other terminal of said solenoid selectively to saidsecond connection or to said third connection, whereby said switch meansis efiective to control independently the speed of the agitating meansand the speed of said basket. 7

4. In a washing machine having a rotatable wash basket, agitating meansdisposed within said basket, drive means including a reversible drivemotor for driving said agitating means and rotating said basket, saiddrive means driving said agitating means upon the rotation of said drivemotor in one direction and rotating said basket upon rotation of drivemotor in the reverse direction, a timer mechanism for controlling thesequence of operation of said machine, said timer mechanism includingmotor reversing switch means for controlling the direction of rotationof the drive motor, and a solenoid for controlling a function of saidwashing machine, control means for energizing said solenoid comprising apair of power supply conductors, means for impressing a voltagesufi'icient to operate said solenoid across the said power supply cona"23 ductors during both the operation of said agitating means .and theoperation of said basket, and circuit means pro- ;viding for theenergization of said solenoid from said power supply conductors duringthe operation of said basket but not during the operation of saidagitating supply conductor during the operation of said basket,

whereby said solenoid can be energized through said connections onlyduring the operation of said basket and not during the operation of saidagitator.

5. In a Washing machine having a rotatable wash basket, agitating meansdisposed within said basket, drive means including a reversible drivemotor for driving said agitating means and rotating said basket, saiddrive means driving said agitator to produce a washing operation upon 7the, rotation of said drive motor in one direction and rotating saidbasket to produce a centrifugal extraction operation upon the rotationof said drive motor in the reverse direction, a timer motor forcontrolling the sequence of operations of said machine, said timermechanism including motor reversing switch means for controlling thegizing said distribution .valve solenoid during said first centrifugalextraction operation and not during any of the other of said operations,said circuit means comprising a pair of power supply conductors, meansfor impressing a voltage across said power supply'conductors :during allof said operations sutlicient to operate said solenoid, means includingsaid valve control switch means for energizing one terminal of saidsolenoid from said first power supply conductor when said valve controlswitch means are in first position, said valve control switch meansdeenergizing said terminal when said switch means are in said secondposition, and circuit means including motor reversing switch means forenergizing the other terminal of said supply conductor from said secondpower supply conductor during said centrifugal extraction operations andfrom said first power supply conductor :during said washing and rinsingoperations, whereby the voltage across said power supply conductors isimpressed upon said terminals of said solenoid only when said machine isin said first centrifugal extraction operation.

7. In a washing machine having a rotatable wash basket, agitating meansdisposed within said basket, means including a reversible drive motorfor driving said agitating means and rotating said basket, said drivemeans drivdirection of rotation of said drive motor, and a solenoid forcontrolling a function of said washing machine, conv trol meansproviding for the energization of said solenoid during one of saidwashing and centrifugal extraction operations but not during the otherof said operations, said control means comprising a pair of power supplyconductors, means impressing a voltage sufiicient to operate saidsolenoid across said power supply conductors during both said washingoperation and said centrifugal extractjing operation, first and secondconnections for energizing the opposite terminals of said solenoid,means for connecting said first connection to one of, said power supplyconductors, and means including said motor reversing switc'hjmean's forconnecting said second connection to said one power supply conductorduring one oftsaid washing and centrifugal extraction operations and tothe other of said power supply conductors during said other of saidoperations, whereby said solenoid can be energized from a said powersupply conductors only during said other op- V 7 said basket, adistributiori'valve connected to said drain means for directing theliquid drained from said machine ftoa storage reservoir or to a wasteline, a distribution valve solenoid for operating said distributionvalve between its drain position and its storage position, and a timermechanism for causing said machine to proceed through 'a predeterminedcycle of operations comprising isequenti'ally a Washing operation duringwhich said agitator is operated, a first centrifugal extractionoperation during which said basket is rotated, a rinsing operationduring which the agitator is operated, and a second centrifugaloperation during which said basket is rotated, said A mechanismincluding motor reversing switch means for controlling the direction'ofrotation of said drive motor land valve control switch means forcontrolling said inlet fvalve means, said valve control switch meansbeing in Tone operative position 'during'said first centrifugal extrac-:tion operation andin a second position during said second centrifugalextraction operation; control means for enering said agitating meansupon the rotation of said drive motor in one direction and rotating saidbasket upon the rotation of said drive motor in the reverse direction, atimer mechanism for controlling the sequence of operations of saidmachine, said timer mechanism including motor reversing switch means forcontrolling'the direction of rotation of said drive motor, and asolenoid for I controlling a function of said machine; control means forfor impressing a voltage sufilcient to operate said solenoid across saidfirst and second connections during the opera- 7 tion of both saidagitating means and said basket, a third power supply connection forsaid solenoid, circuit means including said motor reversing switch meansenergizing said third connection from said first power supply connectionduring the operation of said agitating means and from said second powersupply connection during the rotation of said basket and switch meansfor selectively energizing said solenoid from said connections, said,switch means being arranged for connecting one terminal i of saidsolenoid selectively to' said first connection or to said'thirdconnection, and for connecting the other terminal of said solenoidselectively to said second connection or to said third connection,whereby said switch means is eifective to control independently theenergization of said solenoid during the operation of said agitatingmeans and the operation of said basket;

8. In a washing machine having a rotatable Wash basket, an agitatordisposed within said basket, two speed drive meansincluding a reversibledrive motor for driving said agitator and rotating said basket each attwo different speeds, said drive means driving said agitator upon therotation of said drive motor in one direction and rotating said basketupon the rotation of said drive motor in the reverse direction, a timermechanism for controlling the sequence of operat1ons of said machine,said timer mechanism including motor reversing switch means forcontrolling the directions of rotation of said drive motor,

said agitator and said basketQcofitrol means for selectively energizingsaid solenoid during the respective operations of said agitator and saidbasket thereby to control independently the agitator speed and thebasket speed, said control means comprising first and second power sup-.ply connections for said solenoid, means for impressing a voltagesufiicient to operate said solenoid across said first and secondconnectionsduring the operation'of both said agitator and said basket, athird power supply connection for said solenoid, circuit means includingsaid motor reversing switch means energizing said connection from saidfirst power supply connection during the operation of said agitator andfrom said second power supply connection during the rotation of saidbasket, and a pair of switches for selectively energizing said solenoidfrom said connections, one of said switches being arranged forconnecting one terminal of said solenoid selectively to said firstconnection or to said third connection, and the other of said switchesbeing arranged for connecting the other terminal of said solenoidselectively to said second connection or to said third connection,whereby said one switch controls the speed of said basket and said otherswitch controls the speed of said agitator.

9. In a clothes washing machine adapted to proceed through apredetermined cycle of operations for washing and drying clothes, arotatable wash basket, clothes agitating means disposed within said washbasket, drive means alternatively arrangeable in one of two differentoperative conditions, said drive means including a drive motor fordriving said agitating means for washing clothes when said drive meansis in the first of said conditions and for rotating said basket forextracting water from the clothes when said drive means is in the secondof said conditions, said drive means further including two-speed meansconnecting said drive motor to said agitating means and to said basketthereby to drive said agitating means at either of two predeterminedspeeds and to rotate said basket at either of said two predeterminedspeeds, a solenoid for controlling the operation of said two-speedconnecting means thereby to control the speed of operation of saidagitating means and of said basket, and manually operable control meansfor selectively and independently energizing said solenoid during theoperation of said agitating means and the rotation of said basket, saidcontrol means comprising a first switch means for controlling theenergization of said solenoid during the operation of said agitatingmeans, and a second switch means for controlling the energization ofsaid solenoid during the rotation of said basket, said first conditionof said drive means making said first switch means effective to controlsaid solenoid, said second condition of said drive means making saidsecond switch means eflective to 26 control said solenoid, wherebyeither of the speeds of said agitating means and either of the basketspeeds may be combined for washing and drying the clothes.

10. In a clothes washing machine adapted to proceed through apredetermined cycle of operations for washing and drying clothes, arotatable wash basket, clothes agitating means disposed within said washbasket, drive means including a drive motor, said drive means beingalternatively arranged in one of two difierent operative conditions,said drive means driving said agitating means to produce a washingoperation when in the first of said conditions and rotating said basketto produce a centrifugal extraction operation when in the second of saidconditions, a timer motor for controlling the sequence of operations ofsaid machine, said timer motor including means for predetermining wheneach condition of said drive means is to be provided, a solenoid forcontrolling a function of said washing machine, and manually operablecontrol means for selectively and independently energizing said solenoidduring the operation of said agitating means and during rotation of saidbasket, said control means comprising a first switch means forcontrolling the energization of said solenoid during the operation ofsaid agitating means and a second switch means for controlling theenergization of said solenoid during the rotation of said basket, saidfirst condition of said drive means making said first switch meanseflEective to control said solenoid and precluding said second switchmeans therefrom, said second condition of said drive means making saidsecond switch means effective to control said solenoid and precludingsaid first switch means therefrom, whereby provision of the functioncontrolled by said solenoid may be efiected either during operation ofsaid agitating means or rotation of said basket or during both orneither.

References Cited in the file of this patent UNITED STATES PATENTS1,935,145 Davis Nov. 14, 1933 2,082,108 Home June 1, 1937 2,399,319Bowen et a1 Apr. 30, 1946 2,561,186 Dunham July 17, 1951 2,841,003Conlee July 1, 1958

